Choose the correct answer:

(a) Ring wells were used for:

(1) bathing

(2) washing clothes

(3) irrigation

(4) drainage

(b) Punch marked coins were made of:

(1) silver

(2) gold

(3) tin

(4) ivory

(c) Mathura was an important:
(1) village

(2) port

(3) religious centre

(4) forested area

(d) Shrenis were associations of:

(1) rulers

(2) crafts persons

(3) farmers

(4) herders